Fatal error: Uncaught Error: Call to undefined function app() in C:\xampp\htdocs\adminlte3\storage\framework\views\fb42c3c5dae2b574b5ce527df47661ef80bbac88.php:1 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\storage\framework\views\fb42c3c5dae2b574b5ce527df47661ef80bbac88.php on line 1